Métodos de descontaminação de carcaças de frangos de corte

Abstract

Plucking and evisceration can contribute to the contamination of the carcasses, with basically two forms of visible decontamination of small areas: knife cutting (refill) or carcass washing system. Therefore, this work was carried out with the objective of evaluate the visual contamination rates of carcasses and parts of carcasses slaughtered in establishments under Federal Inspection Service (SIF) and the efficiency of the carcass washing system to replace the refill. The data report of partial and total convictions occurred in the five establishments under Federal Inspection that kill chickens in MS, launched in the General Information System of the Federal Inspection Service (SIGSIF) from August 2016 to August 2017 were analyzed. The work was divided in three parts: analysis of the behavior of the slaughtering data and condemnations by contamination, considering as treatments the seasons of the year (winter, autumn, spring and summer); the microbiological contamination reduction assessment before and after the lavage system of 800 carcasses (400 that did not go through the shower x 400 that went through the shower); and an experimental carcass washing test in which 20 carcasses were evaluated in each of the five treatments: carcasses without contamination prior to shower and refill, carcasses without contamination after shower, carcasses with contamination prior to shower and refill, carcasses with contamination after the shower and carcasses with contamination after the refill. The seasons of the year did not influence the quantity and weight of birds slaughtered in the State of Mato Grosso do Sul between August 2016 and August 2017, as well as there are no differences regarding contamination convictions, suggesting uniformity of the production systems and the Service (SIF) regarding the classification of these convictions. The conclusion was that the carcass washing system evaluated was effective in the reduction of microbiological contamination and, when evaluating the carcass washing system and the refill separately, there was no significant difference, even in relation to the contaminated carcass before the decontamination processes.